baber/WOPTO huggingface dataset:
Patent GB-1061496-A (GB)
Title: Polyurethanes
Inventor: STEINGISER SAMUEL
IPC: C08L75/04
Filed: 1965-05-04
Abstract: A polyurethane composition of improved melt flow and mould release properties comprises a polyurethane elastomer to which has been added a mixture containing a ratio of 0.5 to 2 parts of a high M.W. polyolefin of M.W. 100,000 to 500,000 to one part of a low M.W. polyolefin of M.W. from 1000 to 4000, the total quantity of said high and said low M.W. polyolefins being from 0.2 to 5% by weight of the polyurethane-the mixture of polyolefins within said ratio having a melt index of at least 115 (defined) and being solid at room temperature.  The polyolefins may be polyethylene, polypropylene or mixtures thereof.  The polyurethane may be prepared from a polyhydric polyester, polyether, polyacetal, polythioether, polyesteramide or polyetherester by reaction with an organic polyisocyanate. A chain extender, e.g. glycol, diamine, aminoalcohol or hydrazide may also be used.
Patent GB-1531792-A (GB)
Title: Axial compensator for pipe systems
IPC: F16L51/02
Filed: 1976-05-07
Abstract: 1531792 Pipe joints UNITED GAS INDUSTRIES Ltd 7 May 1976 [7 May 1975] 18737/76 Heading F2G A compensation for connecting between pipe ends, comprises two coaxial pipe sockets 1, 2 interconnected by a bellows 3, the socket 1 having thereon a ring 7 carrying a guide bushing 6 surrounding the bellows 3 and slidably mounted with respect to a bearing ring 8 on the pipe socket 2, the bushing 6 having an end-plate 9 and being connected to the bearing ring 8 by screws 12 which screw into the ring 8 and pass through clearance apertures 13 in the end plate 9, the screws allowing adjustment of the length of the compensator before installation. After installation the screws 12 are removed. Movement of the bushing 6 is guided by slots 10 therein engaging pins 11 on the ring 8. The interior of the bellows 3 is protected by a telescopic tube in two parts 4, 5.
Patent GB-438709-A (GB)
Title: Saliva roll for dental purposes
IPC: A61F13/20
Filed: 1935-07-01
Abstract: 438,709. Dental absorbent rolls. HALLER, L., 10, Gerokstrasse, Stuttgart, Germany. July 1, 1935, No. 18820. Convention date, July 2, 1934. [Class 81 (ii)] Wadding or cellulose absorbent rolls employed in the mouth in dentistry are formed with a blunt or sharp point at one or both of their ends by cutting obliquely as shown, or by tapering or bevelling on both sides. When cut obliquely, the ends may be parallel as shown or cut in opposite directions.
Patent GB-806901-A (GB)
Title: Improvements in carrier wave communication systems
Inventor: MOIR JAMES
IPC: B61L15/00
Filed: 1956-06-18
Abstract: 806,901. Signalling over power circuits. BRITISH THOMSON-HOUSTON CO. Ltd. June 18, 1957 [June 18, 1956], No. 18827/56. Class 40 (4). In a carrier system for communicating to and between electric traction vehicles each of which is supplied with operating current via a sheathed insulated cable 5 leading from a contact 4 on a trolley arm 3 on the vehicle 2 which contact 4 connects with an overhead power transmission line 1, the capacitance present between the sheath 7 and the conductor 8 of the cable 5 is employed as a coupling capacitor to convey the modulated carrier signals between the transmission line 1 and communication equipment 6 in the vehicle. As shown, the equipment 6 is connected to the primary winding of transformer 9, the secondary 10 of which is connected between the sheath 7 and ground. A non-linear resistor 12, preferably made of the material sold under the Registered Trade Mark " Metrosil," is connected between the sheath 7 and ground in parallel with the secondary 10. In the event of the cable insulation breaking down the non-linear resistor will become of low impedance and will provide an effective short-circuit to ground.
Patent GB-1269813-A (GB)
Title: A motor vehicle anti-theft device
IPC: B60R25/022
Filed: 1969-04-14
Abstract: 1,269,813. Anti-theft device. STAYPUT ENG. PTY. Ltd. 14 April, 1969 [16 April, 1968; 23 May, 1968], No. 18884/69. Heading B7J. An anti-theft device for limiting the movement of a motor vehicle steering wheel comprises an elongate member 5 of rigid material having a hook or fork 7 and a series of apertures 8 for receiving a padlock to secure the member to a steering wheel so that in use a portion 10 of the member 5 projects from the steering wheel to restrist its movement. The member may be hinged, Figs. 3, 4 (not shown), at a point between the hook and the apertures to facilitate storage when not in use. In another modification, Fig. 5, the member has a fork 20 of sufficient depth to allow for variations of steering wheel size, and partway along its length, a channel member 21 having apertured legs to accommodate a padlock. The member may be hinged adjacent the channel member 21 and have an apertured leg projecting adjacent the hinge, so that a padlock may pass through all three apertures, and thus prevent hingeing when in use. The fork 20 may be replaced by a double return closed hook, Figs. 7, 8 (not shown). In a further modification, Fig. 9, the member has a hook 28 at one end, a fork 29 spaced from the hook, and a pair of apertured legs 30. The member fits over the rim 6 and spoke 31 of a steering wheel and is retained thereon by a padlock. The projecting portion 10 of the member may be straight or bent as shown.
Patent GB-642494-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K7/16
Filed: 1948-07-14
Abstract: 642,494. Mounting dynamo-electric machines. GENERAL ELECTRIC CO., Ltd., and JACOBY; H. C. E. July 14, 1948, No. 18916. Addition to 614,348. [Class 35] A spinning motor as described in the parent Specification is modified by the provision of a further flexible support connecting the hollow rotor shaft 6 and the driving spindle 9, which it houses, at a point outside the upper bearing 7. The upper and lower ends of the hollow shaft are expanded at 20, 12 respectively for housing flexible driving shaft supports 11, 13. The motor is carried on flexible mountings 29 comprising a metal bush 32 fixed to the motor casing and clamped between resilient bushes 35, 36 by a mounting bolt 39. These mountings may be inclined to the motor axis and a modified inclined mounting is described in which a resilient tubular body is bonded to metal plates secured to the motor body and the supporting base respectively.
Patent GB-313769-A (GB)
Title: Massaging machine with variable speed motor
IPC: A61H11/02
Filed: 1928-06-29
Abstract: 313,769. Goodrich, N. E. June 29, 1928. Exercising-apparatus.-An arm-exercising device comprises arms 19 provided with hooks 20 to which a, handle 22, Fig. 4, may be attached, the arms being mounted on rockshafts 12 having oppositely disposed arms 14, 15 at their inner ends connected by pitmen 16, 17 to a crank pin 18 on a crank disc 11. Rotation of the disc 11 by a pinion 10 on the shaft 9 of a motor rocks the arms 19. The rockshafts 12 extend through the sides of a. box-like container 1.
Patent GB-1221636-A (GB)
Title: Improvements in or relating to sheet deliverers for printing presses
IPC: B65H29/04
Filed: 1969-04-14
Abstract: 1,221,636. Delivering sheets. SCHNELLPRESSENFABRIK FRANKENTHAL ALBERT & CIE A.G. 14 April, 1969 [18 April, 1968], No. 18952/69. Heading B8R. Sheets are transferred from a cylinder 2 of a printing-press to grippers on supports 5 carried on a pair of endless chains 1 and thence to grippers on supports 5<SP>1</SP> carried on a pair of endless chains 6, the grippers following a path disposed outwardly of their respective chains, and the transfer to the grippers on the supports 5<SP>1</SP> taking place at a concave portion 7 of the path of the chains 1 and a convex portion 8 of the chains 6, causing a deceleration of the sheets. The sheets are decelerated first as the supports 5 until the straight run 3, second as they enter the portion 7, and third as the supports 5<SP>1</SP> until the straight run of the chains 6, whereby the original gap a between successive sheets is reduced to a gap b. The sheets are then released on to a stack 10.
Patent GB-645763-A (GB)
Title: Improvements relating to electron multipliers
Inventor: RODDA SIDNEY
IPC: H01J43/28
Filed: 1948-07-15
Abstract: 645,763. Electron multipliers. EDISON SWAN ELECTRIC CO., Ltd. July 15, 1948, No. 19028. Drawings to Specification. [Class 39 (i)] In an electron multiplier with electrostatic focusing and a photo-electric cathode, a conducting screen outside the glass envelope surrounds the electrodes, and is maintained at a lower potential than the anode, to reduce unwanted background currents. The external screen must be sufficiently close to the internal electrode system to influence it. An " Aquadag '' (Registered Trade Mark) coating or wire ring or metal strip around the envelope may be connected for example to the cathode, or in a linear alternating construction a series of conducting rings may surround the envelope, each maintained at a potential equal to or more negative than the nearest electrode in the envelope. To reduce the danger due to high potentials on the rings during operation they may be connected through a resistance of several megohms or covered with suitable insulating material.
Patent GB-1218880-A (GB)
Title: Improvements in or relating to ships
IPC: B63B27/24
Filed: 1969-04-14
Abstract: 1,218,880. Heating viscous cargo. PATENTS & DEVELOPMENTS A.S. 14 April, 1969 [24 Dec., 1968], No. 19052/69. Heading B7A. [Also in Division F4] In a ship having a double bottom and intended for alternate transport of liquid and dry cargo a through flow heating assembly is arranged beneath the double bottom 1 of the cargo hold, the through flow heating assembly comprising a circulation pump 9 and heat exchangers 3, 6, the pump 9 drawing from opening 5 located at the lowest part of the hold and distributing through opening 2 cargo heated by the exchangers. One embodiment shown is provided with two independent through flow assemblies for one and the same cargo hold. Another embodiment has two circulation circuits operated by a common pump.
Patent GB-1215583-A (GB)
Title: Tool setting fixture and apparatus employing same
Inventor: DICKSON DONALD JOHN
IPC: B23Q17/22
Filed: 1967-04-25
Abstract: 1,215,583. Pre-setting cutting tools. DICKSONS (ENG.) Ltd. 30 April, 1968 [25 April 1967], No. 19069/67. Headings B3B and B3T. Apparatus for pre-setting cutting tools for use in a machine tool such as a lathe comprises a base-plate 1, a tool mounting 2 located on the base-plate and adapted to receive a tool holder 4 means 10-13 for adjusting the tool 5 in the tool holders and a mechanical indicator 14 which is preset to a perdetermined datum whereby through the operation of the adjusting means the tool may be preset to the required datum. The indicator 14 which is in the form of a dial gauge is preset by the location of a slip gauge 23 which bears against the indicator probe 144, or by zeroing the dial when the anvil 20 is aligned with the centre line of the pivot pin 19. The dial gauge is mounted on an arm 18 which is rotatable around the pivot pin 19 and may be locked in any of four positions, determined by holes 20, at right angles to each other. The preset tool with the tool holder is subsequently transferred to a complementary tool mounting on the lath in which it is to be used.
Patent GB-194615-A (GB)
Title: Improved refrigerating tank
IPC: F25D3/04
Filed: 1922-07-12
Abstract: 194,615. Baker, E. J. July 12, 1922. Refrigerators, domestic and like. - An ice and brine tank for refrigerating - chambers is provided with a recess E in the front wall, to accommodate a man-hole cover C and draw-off pipes and taps for brine connected fo flanges D, H, and with plain or tapered openended tubes G, B passing through the tank from front to back, the air of the storage chamber being circulated through these tubes when the door is opened and closed. A top tank A for charging purposes may be recessed at the front edge. Bars F across the interior of the tank protect the tubes G, B from damage when filling the tank with ice.
Patent GB-625976-A (GB)
Title: Improvements in or relating to method and means for minimizing power supply ripple
IPC: H03F3/40
Filed: 1946-06-26
Abstract: 625,976. Valve amplifying circuits. SPERRY PRODUCTS, Inc. June 26, 1946, No. 19097. Convention date, June 28, 1945. [Class 40 (vi)] In an electronic circuit in which a periodic signal generator is synchronized with the A.C. supply which energizes the valves, the A.C. power component in the output of a valve is neutralized by an out-of-phase injected voltage so that the signal alone appears in the output. The Figure shows an arrangement in which trains of oscillations from a generator 10 are amplified by an A.C. operated valve T, the supply frequency component being removed from the output of the valve by feeding in a balancing voltage derived from the anode circuit of an A.C. operated valve T<1>. Alternatively, the balancing voltage may be derived from the supply (as in Figs. 1 and 2, not shown). The trains of oscillations are synchronized with the positive half-cycles of the supply 11 by means of a synchronizing device 12.
Patent GB-260343-A (GB)
Title: Improvements relating to endless conveyors
IPC: B65G21/14
Filed: 1925-07-28
Abstract: 260,343. Donald, P. G., and Rownson, Drew, & Clydesdale, Ltd. July 28, 1925. Tensioning belts, chains, and ropes; collapsable framework. -The upper run E is prevented from coming into contact with the lower run F of a horizontal bight formed in the conveyer A by pivoted hooks M. The jockey pulley G which supports the bight is mounted on a wheeled carriage H running on a track J. As the carriage is moved, inclined cam surfaces H' thereon come into contact with projections M<2> on the hooks and force them aside temporarily against the resistance of springs M<1>. Specification 2240/10 is referred to.
Patent GB-918239-A (GB)
Title: Solid state electrical circuit elements
IPC: H03K3/38
Filed: 1959-06-04
Abstract: 918,239. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 4, 1959 [June 4, 1958], No. 19183/59. Class 37. Electrical apparatus comprises a semi-conductor circuit element maintained at a low temperature so that there are no thermallygenerated carriers and means for applying a variable magnetic or electric field to the element to render it switchable between conducting and substantially non-conducting conditions. An initial magnetic field may be used to establish a sufficient energy gap to prevent thermal carrier generation. The material may consist of germanium with about 10<SP>17</SP> atoms per c.c. of impurity such as arsenic or antimony, maintained at the temperature of liquid nitrogen or indium antimonide with impurity concentrations of less than 10<SP>14</SP> atoms per c.c. which is subjected to a magnetic field to establish energy level separation so that there are no thermally generated carriers. The element may be used as a voltage limiter, providing a constant voltage at breakdown. In Fig. 6, the element 10 is subjected to a controllable magnetic field produced by winding 17 and becomes suddenly conductive when a voltage applied from a battery 14 reaches a certain value which is inversely proportional to the strength of the magnetic field. The arrangement may be used to measure the magnetic field. A negative resistance effect is produced at the transition stage which may be used to produce a multi-stable-state device. Fig. 9 shows a relaxation oscillator circuit in which capacitor 25 discharges through element 20 when this becomes conducting due to the applied voltage reaches breakdown value.
Patent GB-801744-A (GB)
Title: Improvements relating to motorised guillotines
IPC: B26D7/22
Filed: 1955-07-02
Abstract: 801,744. Guillotine cutting - machines. HOLMES, A. H., HOLMES, F., and HOLMES, A. L. Oct. 1, 1956 [July 2, 1955], No. 19206/55. Class 31 (1). In a guillotine comprising power means for driving a knife beam between a lowermost cutting position and a raised position, clutch and brake means mounted in the driving means and an operating member for simultaneously engaging the clutch means and releasing the brake means, and vice versa, a safety mechanism is provided for locking the knife beam in the raised position, the safety mechanism including a control member operatively connected with the clutch and brake operating member, a diagonally disposed locking member pivotally mounted on the machine, linkage means connecting the control member with the locking member, the linkage means including a link, a slidable connection between the locking member and the link, and abutment means on the knife beam for engaging the locking member in the raised position of the knife beam, the control member and linkage means being so arranged as to release the engagement between the locking member and the abutment means when the operating member is actuated to engage the clutch means and release the brake means. As shown, a motor-driven flywheel 1, Fig. 3, freely mounted on a horizontal shaft 2 has rigidly mounted coaxially therewith a clutch drum 3. A control lever 4 at the front of the machine is adapted, through a connecting rod 5 and lever 6, to move axially a draw-bar 7 extending through the shaft 2 and terminating in a clutch cone 8. Adjoining the clutch cone is a clutch body 10 keyed to the shaft 2 and provided with a toggle lever 9 movable on an axis 11, one arm of the toggle lever normally occupying a position between the ends of a split clutch shoe 12 so as to expand the shoe into contact with the clutch drum 3 and thereby transmit a friction drive to the shaft 2. The knife beam. B is driven from the shaft 2 through gearing including a gear-wheel 14, Fig. 2, and an associated crank rod 15. The knife beam is biased in its direction of descent by springs while a friction brake 17, Fig. 3, holds the beam stationary in its fully ascended position. When the control lever 4 is moved outwardly, the lever 6 operates a brake lever 20 to release the brake 17 and simultaneously pulls the draw-bar 7 in the direction indicated in Fig. 3 whereby the clutch 10 is coupled. In the path of a stud 30, Fig. 2, fixed on the knife beam lies a pivoted locking member 31 having a notch 32 and a lost-motion connection 34 to a link 35 which is connected through a bell-crank 37, 39 and link 41 to an arm 42 of the control lever 4. At the end of the upward movement of the knife beam, the latter is locked by means of the stud 30 engaging the notch 32. Such locking is released when the control lever 4 is again moved outwardly.
Patent GB-314432-A (GB)
Title: Treating coke oven gas
IPC: C01B32/50
Filed: 1929-06-22
Abstract: 314,432. Compagnie de Bethune. June 27, 1928, [Convention date]. Gaseous mixtures.-A mixture of nitrogen, hydrogen, and carbon monoxide, which is suitable after further treatment for the synthesis of ammonia, is produced from the residual gases obtained after hydrogen has been separated from coke oven gas, by subjecting these residual gases, in admixture with a suitable proportion of air, to a flameless incomplete combustion in a tower filled with refractory material kept at a high temperature. The residual gases, which may contain methane, ethane, ethylene, propylene, carbon monoxide, carbon dioxide, nitrogen, and some residual hydrogen, are forced by a compressor 1, after being mixed with air supplied by a compressor 1<1>, into the tower 2 in which incomplete combustion takes place, the refractory packing of the tower being heated by the reaction itself to the required temperature. The formation of oxides of nitrogen at this stage is prevented by ensuring that the proportion of carbon dioxide in the gases issuing from the tower 2 does not exceed 5 per cent. The hot gases then pass to a tower 3, in which traces of unsaturated hydrocarbons, chiefly of the acetylene series, are removed by catalytic destruction in the presence of iron, nickel, chromium, or an alloy thereof. The gases are cooled in a water-scrubber 4, and pass to another scrubber 5, in which carbon dioxide is removed by means of an ammonia solution, which is circulated by a pump 7 from a tank 8 continually supplied with fresh solution. Another water-scrubber 6 completes the purification of the gases, which may then be mixed with hydrogen; carbon monoxide is previously removed by methods involving its conversion mainly into methanol, which is condensed, and partly into methane, which need not be removed.
Patent GB-147198-A (GB)
Title: Improved method of and means for cast-welding electric bonds
IPC: E01B11/50
Filed: 1920-07-07
Abstract: 147,198. Rail Welding & Bonding Co., (Assignees of Lincoln, J. C.). Aug. 9, 1913, [Convention date]. Void [Published under Sect. 91 of the Act]. Rail bonds.-For cast-welding a bond c to the rail ends, the bond is held in place by a mould d, preferably of carbon or carbon lined, having enlarged recesses d<1> for the bond heads, and an electric arc or other flame is formed in the recesses to effect surface fusion, an additional supply of bonding material being optionally added to form the bond terminals while the fusion is in progress. The mould is held on to the rails by clamps e and is so formed as to shield the body of the bond from heat, as shown in Fig. 2. For arc welding, a carbon is used for the negative terminal. The additional material is added by introducing an independent copper rod into the recess d' after the preliminary fusion of the bond head and rail surfaces. The bond may consist of U-shaped laminµ c<1> with end bands c<11>.
Patent GB-674915-A (GB)
Title: Improvements in filters for liquids
IPC: B01D29/00
Filed: 1950-08-02
Abstract: 674,915. Filters. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Aug. 2, 1950 [Nov. 30, 1949], No. 19353/50. Class 46. A filter for liquids comprises within a filter chamber a plurality of annular filter elements mounted coaxially with, and at spaced intervals along, an elongated tubular support forming a discharge passage for the filtrate, each filter element being in the form of a pair of washershaped walls of screening material, such as wire gauge, spaced apart in the axial direction of the support and arranged with outer and inner peripheral walls (or with an outer peripheral wall and the outer periphery of the tubular support) to form an annular cavity which is in communication with the discharge passage, in combination with means for directing cleaning fluid on to the exterior of the filter elements. In the construction shown, a chamber 1 is provided with a central perforated hollow member 5 supporting filter elements 25 of screen material which have openings communicating with the interior of the member 5. The liquid to be filtered enters the chamber through.an inlet 2 and after being filtered is discharged by way of the hollow member 5 and an outlet 22. The member 5 is rotatably mounted and may be rotated by an electic motor 45 when the filters are being cleaned by steam entering the chamber through openings 38, 39. The steam is directed against the upper and lower surfaces of the filter elements. The dirt is conveyed away through a blow-down outlet 48. The chamber 1 is provided with an outlet 52 through which air is removed when the chamber is being filled with liquid. The filter may be used for filtering fuel for combustion apparatus such as a gas turbine, in which case the outlet 52 may lead., through a pressure relief valve 53 to the fuel storage tank, from which fuel is pumped to the chamber 1.